Multiple choice

Which of the following statement(s) is/are true about NRZ line coding scheme? i. Average signal rate of NRZ is n/2 Bd. ii. Long sequence of Zero can cause the problem in NRZ-I only. iii. Long sequence of One can cause the problem in NRZ-L only.

  1. Only i

  2. Only i and iii

  3. Only i and ii

  4. Only iii

  5. All the statements are correct
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

For both polar NRZ (NRZ-I and NRZ-L), signal rate is n/2. Since NRZ-I is inverted at 1, so it doesn't have any issue with a long stream of 1.

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